Agricultural implement



July 22, 1952 R. H. RAUEN AGRICULTURAL IMPLEMENT 2 SHEETS-SHEET 1 FiledJan. 7, 1950 IQQVMO/VO P UE/V INVENTOR.

ATTORNEYS.

y 22, 1952 R. H. RAUEN AGRICULTURAL IMPLEMENT I 2 SHEETSSl-IEET 2 FiledJan. 7, 1950 INVENTOR.

ATTORNEYS.

Patented July 22, 1 952 I AGRICULTURAL INIPLEMENT Raymond H. Rauen,Glendale, Calif., assignor to \United, States Spring & Bumper 00., LosAngeles, Calif., a corporation of California Application January 7,1950, Serial No. 137,359

This invention relates to agricultural implements. It has particularreference to ground contacting, tools adapted to be carried on a mobileframe. a

One of the objects of my invention is to provide novel means forattaching a tool such-as a a novel form of attaching device forreleasably securing a horizontally disposed agricultural tool to'thelower end of a curved shank, the attaching device having noveladjustment means whereby the tool may be raised or lowered with respectto the shank without disturbing the horizontal disposition of the tool.

Curved shanks used in plowing and cultivating generally have a straightupper portion for attachment to a mobile frame. The curved portion maybe rectangular or it may be of the type which is directed to a shankhaving a curved or rounded cross-section.

A further object of my invention is then, the provision of novel adapteror shoe devices by means of which an implement such as a knife may beadjustably secured to shanks havin various cross-sectional shapes.

Other object and advantages-it is believed will be apparent from thefollowing detailed description of preferred embodiments thereof asillustrated in the accompanying drawings.

In the drawings:

8 Claims. (01. 97-205) Figure 1 is a side elevation, partly in section,

illustrating details of an agricultural implement embodying my inventionas'adapted to be attached to a shank'of curved cross-section;

Figure 2 is a plan view of the attaching bracket and cutting knife, theshoe, shank and forward-pointing tool being omitted for clarity Figure'7 is a sectional elevation taken substantially on the lines 1-! ofFigure 1;

Figure 8 is a sectional elevation taken substantially on the lines 88 ofFigure 1; and

Figure 9 is an exploded perspective view of the shoe and bracket shownin Figure 6.

Referring now to the drawings, the agricultural shank l0 may besupported on a mobile frame in-the manner shown in any conventionalmanner. Secured to the lower end of the'curved shank l0 and carried onthe forward portion of the curve is a ground engaging tool II, which isattached to the shank by means of the releasable bolts |2 and I3extending through the tool H and the shank In. These bolts furthersecure the attaching device, generally indicated at M, to the rear ortrailing portion of the curved shank 'in the manner described below.

The attaching device l4 includes a V-shaped bracket I5 which carries atool such as the horizontal knife I6. The base portion I! of the bracketis provided with apertures I B through which attaching bolts [9 extendfor connecting the knife I6 to the attaching device M. The knife I6comprises a pair of diverging blades 2|] which may be formed as a singleintegral blade as shown, or if desired may be formed from two separateblades. Interposed between the tongue portion 2| of the bracket l5 andthe shank I0 is an'. adapter member or shoe 22. particularly to Figure3, it will be seen that the shoe 22 comprises a straight, flat upperportion 23 and a transversely curved, forwardly extending lower portion24. As shown in Figure 1, the

short bolt l2 extends through the lower portion 24 'of the shoe, thelong bolt l3 extending through both the straight portion 23 of the shoeand the tongue 2| of the bracket I5. Further connection means betweenthe shoe and the bracket are provided by the carriage bolt 25 whichextends through the square opennig 21 in the upper portion of the shoe22 and through the slotted opening 28 in the tongue 2|. The slots 28 and29 and holes 30 and 3| in the tongue 2| provide means for verticaladjustment of the knife I 6. It will be noted that the tongue 2|contacts the shoe 22 only along the straight portion 23 thereof, so thatregardless of the vertical position of the tongue with respect to theshoe, the blade may be maintained in a horizontal position.

The particular shape of the shoe 22 provides for a very rigid mountingfor the attaching device It, and at the same time provides meansforvertical adjustment 'of the knife IS without disturbing thehorizontal disposition thereof.

Referring bracket, knife and connecting bolts are identicalwith thosedescribed above. The adapter member or shoe 6| issimilar to the:shce:22described above, with the exception that the lower portion;

52 is rectangular in cross-section so that the.

shoe may be securely attached to the shank,

While I have shown and described specific em secured tothe-shoe memberwith the fiat. forward side of the tongue portion in contact with thefiat back sideof the shoe member; and means on said'bracketfor attachingthe groundsengaging tool thereto 7 2. In a device for connecting a.ground engaging tool to' the lower portion of a curved shank, thecombination of: a 'shoe'member secured to the curvedshank, said shoemember havinga ,tfiat backside; a substantially. horizontal base forconnection with the ground engaging. tool; a, tongue memberformedintegrally with the base and extending upwardly therefrom, said tonguemember having a flat forward side;

and longitudinal-1y spacedapertures extending through-the tongue forsecuring the tongue to the shoe with theflatside of the tonguecontacting the fiat side of; the shoe, V

3; In adevice for connecting a ground engaging'tool tothe lower portionof a curved shank, the combinationv of 2' a shoe member secured to thecurvedshank, said shoe member having a 4 member having a flat forwardside; and longitudinally spaced apertures extending through the tonguefor securing the tongue to the shoe with the fiat side of the tonguecontacting the straight upper portion of the shoe, said aperturesincluding longitudinal slots for adjustment of said tongue with respectto :tliei'shoemember,

5'. In a device for connecting aground engaging tool to the lowerportion of a curved shank having a rectangular cross section, thecombination of; ashoe member secured to the shank, said shoe memberhaving a straight upper portion -tangent t'oJth curved shank and astraight lower portion integral with the upperportion and extendingforwardly therefrom to contact the shank; a substantially horizontalbase for connection with the ground engaging tool; a tongue member.formed integrally with thebase and extending upwardly therefrom, saidtongue member having a; flat forward side; and longitudinally spacedapertures; extending through the tongue for securing the. tongue" to theshoe with the flat side of the tongue contacting the straight upperportion of the shoe. V

.6. In; a device for connecting a ground engaging' toolto the lowerportion of a curved shank having a rectangular-cross section, thecombination of; a shoe member secured to the shank,said-shoememberhaving astraig ht upper portion tangent to the curvedshank and a straight lower portiongintegral wit-lithe upper portion andex-.

tending forwardly therefrom to contact the shank; a substantiallyhorizontal base for. connection with the ground engaging tool; a tonguemember formed integrally-with the base and extending upwardlyitherefromsaid tongue member having a flatforward side; and longitudinally spaced?apertures extending through the.

' tongue for securing the tongue to the shoe with the flat side ofthe'tongue contacting thestraight uppen portion. of the shoe,saidapertures including longitudinal slots for adjustment of said tonguewith respect to the shoe member.

.7. In a device for connecting aground engaging tool to the lowerportion of a shank which is curved longitudinally and has a transverselycurved back side, the combination of a shoe member secured to thecurvedshank, said shoe member havinga, straight upper portion tangent straightupper portion tangent to the curved v shank and a lower portion integralwith the upper portion and inclined at an angle to extend for-- wardlytherefrom; a. substantially horizontal base;

. for connection with the ground engaging tool;

a-tongue member formed integrally with the baseandextendingupwardlytherefrom, said tongue. member having a flat forwardside; and;longi-- tudinally spaced apertures extending through the.tongue. for securing; the tongue to-the shoe-with theflat side of-thetongue contacting the straight. upper 'portionzof .iihe shoe.

41in a device for, connecting a ground engag ing tool to the lowerportion of acurved shank, the combination of: 'ashoe member secured tothe curved shank; saidshoemember having astraight upper portion tangentto thecurved" shank and a 'lowerportion integralwith the upper portionand inclined at. an. angle to extend forwardly therefrom; asubstantially horizontal base for connection with the groundv engagingtool; a

tongue memb'eri formed. integrally, with: the; base andextendingupwardlyitherefrom; I said: tongue;

' to the curved shank and alowerportion integral transversely V curved.back. side of. the curved shank; a substantially horizontal base. forconnection with the ground engaging tool; atongue mernberformedintegrally with the base and extending upwardly; therefrom, said'tonguememher; having a flat forward side;: and longitudinally spacedapertures extending through the tongue-for securing the-tongue to theshoe with the flat side of the tongue: contacting the straight iupperpo-rtion of the shoe.

8. In a device for connecting a ground engag-.

' member hayinga straight upper portion tangent transversely; curvedback side of the curved shank; a substantially'horizontal base forc'on-5 nection with the ground engaging tool; a tongue REFERENCES CITEDmember formed integrally with the base and The following references areof record in the tending upwardly therefrom, said tongue memof thiatent: her having a fiat forward side; and longitudinally me 5 p spacedapertures extending through the tongue 5 UNITED STATES PATENTS forsecuring the tongue to the shoe with the Number Name Date flat side ofthe tongue contacting the straight 1,630,585 Simons May 31, 1927 upperportion of the shoe, said apertures includ 2,333,371 Graham Nov. 2, 1943ing longitudinal slots for adjustment 01. said tongue with respect tothe shoe member. 10

RAYMOND H. RAUEN.

